topic Re: [Guide] How to Read Firmware Information in Tech Talk https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149641#M33036 Informative, thank you Punit. <span class="lia-unicode-emoji" title=":grinning_face_with_smiling_eyes:">😄</span> Tue, 31 Dec 2019 08:20:33 GMT DhruvJain2298 2019-12-31T08:20:33Z [Guide] How to Read Firmware Information https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149384#M33030 <DIV>Hello Members,&nbsp;</DIV><DIV>Today I'm sharing a firmware guide with you in which you can read and know about your Firmware information.&nbsp;</DIV><DIV><BR /></DIV><DIV><BR /></DIV><FONT size="5"><B>Basic Firmware Information</B></FONT> Firmware information consists of 3 information. Build version, CSC version, and baseband version.<DIV><BR /></DIV><DIV>Let's suppose that firmware search result is&nbsp;</DIV><DIV><I><B><BR /></B></I></DIV><DIV><I><B>A720SKSU3BRK1/A720SSKC3BRK1/ A720NKOu3BRK1</B></I>&nbsp;</DIV><DIV><BR /></DIV><DIV>First one(<I>A720SKSU3BRK1</I>) refers build version, second one(<I>A720SSKC3BRK1</I>) refers CSC version,<BR /></DIV><DIV>last one(<I>A720NKOU3BRK1</I>) refers baseband version.<DIV><BR /></DIV><DIV><BR /></DIV><DIV><FONT size="5"><B>What do we know with firmware version?</B></FONT>&nbsp;</DIV><DIV>All we need to care is build version. We can analyze firmware with build version.&nbsp;</DIV><DIV><BR /></DIV><DIV>Here is example build version: <I style=""><FONT size="4"><B>A720SKS</B><B style=""><FONT color="#f44336">U3</FONT></B><B><FONT color="#ffeb3b">B</FONT><FONT color="#8bc34a">R</FONT><FONT color="#0338d0">K</FONT><FONT color="#a703d0">1 </FONT></B></FONT></I></DIV><DIV><BR /></DIV><DIV><BR /></DIV><DIV><FONT size="5" color="#f44336"><B>Red text</B></FONT>&nbsp;</DIV><DIV>Red text (ex. U3) means bootloader version.&nbsp;</DIV><DIV><BR /></DIV><DIV>Due to Samsung's security policy, you cannot downgrade from higher bootloader version firmware to lower bootloader version firmware.&nbsp;</DIV><DIV><BR /></DIV><DIV><B><FONT size="5" color="#ffeb3b">Yellow text</FONT></B>&nbsp;<BR /></DIV><DIV>Yellow text (ex. B) means Android OS version. If yellow text is updated, it means Android OS is gonna be or has been updated.&nbsp;</DIV><DIV><BR /></DIV><DIV>A means very first Android OS version.&nbsp;</DIV><DIV>B means Android OS has been updated once.</DIV><DIV>C means Android OS has been updated twice.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>Z means beta firmware.&nbsp; </DIV><DIV><BR /></DIV><DIV><FONT size="5" color="#8bc34a"><B>Green text</B></FONT>&nbsp;<BR /></DIV><DIV>Green text (ex. R) means year when firmware was built.&nbsp;</DIV><DIV><BR /></DIV><DIV>R means 2018,</DIV><DIV>S means 2019,</DIV><DIV>T means 2020,&nbsp;</DIV><DIV>and so on.&nbsp;</DIV><DIV><BR /></DIV><DIV><B style="color: rgb(3, 56, 208); font-size: x-large;">Blue text</B><BR /></DIV><DIV>Blue text (ex. K) means month when firmware was built.&nbsp;</DIV><DIV>A means January,</DIV><DIV>B means February,</DIV><DIV>.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>L means December.&nbsp; &nbsp;<BR /></DIV><DIV><BR /></DIV><DIV><B style="color: rgb(167, 3, 208); font-size: x-large;">Purple text</B><BR /></DIV><DIV>Purple text (ex. 1) means how many times firmware was built.&nbsp;</DIV><DIV>1 means firmware was built once.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>9 means firmware was built 9 times.&nbsp;</DIV><DIV>A means firmware was built 10 times.&nbsp;</DIV><DIV>.</DIV><DIV>.</DIV><DIV>.</DIV><DIV>Z means firmware was built 35 times.&nbsp;<BR /></DIV></DIV><DIV><BR /></DIV><DIV><BR /></DIV><DIV><I>SOURCE: CheckFirm</I></DIV> Tue, 21 Jan 2020 13:42:55 GMT https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149384#M33030 PunitVerma 2020-01-21T13:42:55Z Re: [Guide] How to Read Firmware Information https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149641#M33036 Informative, thank you Punit. <span class="lia-unicode-emoji" title=":grinning_face_with_smiling_eyes:">😄</span> Tue, 31 Dec 2019 08:20:33 GMT https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149641#M33036 DhruvJain2298 2019-12-31T08:20:33Z Re: Re: [Guide] How to Read Firmware Information https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149653#M33037 <span class="lia-unicode-emoji" title=":smiling_face_with_smiling_eyes:">😊</span> Tue, 31 Dec 2019 08:21:42 GMT https://r2.community.samsung.com/t5/Tech-Talk/Guide-How-to-Read-Firmware-Information/m-p/3149653#M33037 PunitVerma 2019-12-31T08:21:42Z